前提

项目中都会使用 Result 作为接口返回值,分页查询接口中会使用 Result<PageInfo<T>>,T 是实际的返回对象,现在我想使用 @JsonView,发现返回值直接变为空了。我尝试在 ObjectMapper 中增加 Result 的 Serialzer 确实可以满足我的要求。但是感觉不太优化,所有接口返回值都是 Result ，影响太大.
下面是我的代码片段

 @Bean public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) { ObjectMapper objectMapper = builder.createXmlMapper(false).build(); SimpleModule simpleModule = new SimpleModule(); simpleModule.addSerializer(Result.class, new ResultJsonSerializer(objectMapper)); objectMapper.registerModule(simpleModule); return objectMapper; } @Override public void serialize(Result<T> page, JsonGenerator gen, SerializerProvider serializerProvider) throws IOException { gen.writeStartObject(); gen.writeStringField("code", page.getCode()); gen.writeStringField("msg", page.getMsg()); gen.writeStringField("timestamp", page.getTimestamp()); gen.writeStringField("requestId", page.getRequestId()); gen.writeFieldName("data"); // 将 "data" 字段名称写入 if (page.getData() instanceof PageInfo) { gen.writeStartObject(); // 开始 JSON 对象 gen.writeBooleanField("isFirstPage", ((PageInfo<?>) page.getData()).isIsFirstPage()); gen.writeBooleanField("hasNextPage", ((PageInfo<?>) page.getData()).isHasNextPage()); gen.writeBooleanField("isLastPage", ((PageInfo<?>) page.getData()).isIsLastPage()); gen.writeBooleanField("hasPreviousPage", ((PageInfo<?>) page.getData()).isHasPreviousPage()); gen.writeNumberField("pages", ((PageInfo<?>) page.getData()).getPages()); gen.writeNumberField("nextPage", ((PageInfo<?>) page.getData()).getNextPage()); gen.writeNumberField("navigatePages", ((PageInfo<?>) page.getData()).getNavigatePages()); gen.writeNumberField("pageNum", ((PageInfo<?>) page.getData()).getPageNum()); gen.writeNumberField("pageSize", ((PageInfo<?>) page.getData()).getPageSize()); gen.writeNumberField("size", ((PageInfo<?>) page.getData()).getSize()); gen.writeNumberField("prePage", ((PageInfo<?>) page.getData()).getPrePage()); gen.writeNumberField("navigateFirstPage", ((PageInfo<?>) page.getData()).getNavigateFirstPage()); gen.writeNumberField("navigateLastPage", ((PageInfo<?>) page.getData()).getNavigateLastPage()); gen.writeNumberField("startRow", ((PageInfo<?>) page.getData()).getStartRow()); gen.writeNumberField("endRow", ((PageInfo<?>) page.getData()).getEndRow()); gen.writeNumberField("total", ((PageInfo<?>) page.getData()).getTotal()); gen.writeArrayFieldStart("list"); objectMapper.writerWithView(serializerProvider.getActiveView()).writeValue(gen, ((PageInfo<?>) page.getData()).getList()); gen.writeEndArray(); gen.writeEndObject(); // 结束 JSON 对象 }else { objectMapper.writerWithView(serializerProvider.getActiveView()).writeValue(gen, page.getData()); } gen.writeEndObject(); }